DISEASES OF THE SKIN 8 1 



and there is a noticeable check in their thriftiness. 

 However, the disease is not serious as a rule, and the 

 disagreeable symptoms caused by the skin irritation 

 pass off in a few days. We must not make the mis- 

 take of including the symptoms of the primary dis- 

 ease with those of urticaria, when the latter occurs 

 as a complication. This mistake is sometimes made 

 by some writers. Pustules are said to form in severe 

 Cases. 



The disease is not contagious. Its presence in the 

 whole herd can be explained by the predisposition on 

 the part of the animals, and the extent of the causa- 

 tive factor or factors. • 



Treatment. — The preventive measures against the 

 disease consist in keeping growing hogs in clean 

 quarters, and avoiding the use of irritating prepara- 

 tions on the skin. There are plenty of non-irritating 

 washes and dips that can be used for the purpose of 

 destroying lice and cleaning the skin, without resort- 

 ing to the use of irritating preparations. 



At the beginning of an attack of urticaria a physic 

 should be given the animal. Epsom salts is best, and 

 can be given in the feed or as a drench. The hogs 

 should be kept in a cool, shady place, and fed a sloppy 

 diet. In severe cases some writers advise dosing the 

 animals with Fowler's solution. The dose is ten 

 drops in the feed for each hundred pounds live 

 weight, twice a day. 



After the hogs have recovered, if dirty or lousy, 

 they should be dipped in a one or two per cent, water 

 solution of some tar disinfectant. The premises 



